import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login.vue'
import home from '../components/Home.vue'
Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { path: '/home', component: home }
  ]
})
// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // form 代表从哪个路径跳转而来
  // next 是一个函数 表示放行

  if (to.path === '/login') return next()
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default {
  router
}
